196 



INSECTS INFESTING THE GRAPE. 



CHAPTEK C'XIII. 



The Spotted Pelidnota. 



(Pelidnota puiirtata. — Linna?us.) 



Order, Colkoptkka ; Family. Scarab.eid.e. 



2 



[The ineasuienients of insects in this woik aie gi\en in ii.ches and lines. The above cut rep- 

 resents one inch divided into lines and fractions thereof. J 



[Feeding upuii tlie leaves of the grape vine; a robust clay- 

 yellow beetle, about one inch hnig, markV^d with a black spot 

 on each side of the thorax, and with three Ijlack spots on each 

 wing-cover.] 



Fig. 181.— Spotted Fig. IHl. 



Pelidnota, Larva 

 and Pupa ; c, the bee- ^"^v 

 tie — colors, yellowish 

 and black ; a, the grub 

 — color, white ; d, the 

 tip of its body ; e, one 

 of its antennae, en- 

 larged ; /, one of its 

 legs, enlarged ; b, the 

 pupa in its earthen 

 cell — color, brown. 



These beetles (Fig. 

 181c) sometimes occur 

 in destructive num- 

 bers upon the leaves of the cultivated grapevine, but only in 

 limited localities. 



The larva? or grubs (Fig. 181a) closely resemble the white 

 grubs, but difier in having a heart-shaped sAvelling at the hind 

 end of the body. 



Remkdiks.— Use Nos. 19, 20, 21. 102; use Nos. 103 and 10 

 on non-bearing trees and vines. 



